Yokota is more open with his feelings, but Nakagawa is easily embarrassed of public displays of affection. Though they may be outwardly different, their feelings for each other are the same -- their connection is such that they liken themselves to Do-Seibutu (Same-Cell Organisms).

    Kasumi is reserved, soft-spoken and shy; Kyousuke is energetic and has always been popular among their peers. As the saying goes though, opposites have a tendency to attract, and these two have been fast friends since elementary school. To Kasumi, Kyousuke has always been a hero to look up to, someone who supports him and saves him from the bullies. But now, school is over; their relationship suddenly becomes a lot less simple to describe. Facing the world — and one another — as adults, both men find there are things they struggle to say out loud, even to each other.

    At first, Misaki is disgusted by Akihiko, but slowly, Misaki realizes he may be developing feelings for the older man. And so begins the bumpy relationship of this odd couple, filled with comedy and pure romance...

    Although the cool and handsome Siva seems unapproachable, Anise manages to become his friend. But her happiness turns to surprise when she discovers Siva's secret: for years, he's been switching identities with his twin brother, Cipher!